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1. 发明申请

WO2010144506A1 METHOD AND SYSTEM FOR INTERFERENCE CANCELLATION 审中-公开
标题翻译：干扰消除的方法和系统
公开(公告)号：WO2010144506A1
公开(公告)日：2010-12-16
申请号：PCT/US2010/037853
申请日：2010-06-08
申请人： QUALCOMM Incorporated , LI, Wenjun , ABRISHAMKAR, Farrokh , YU, Yingqun
发明人： LI, Wenjun , ABRISHAMKAR, Farrokh , YU, Yingqun
IPC分类号： H04B1/707
CPC分类号： H04B1/71072 , H04B2201/70702
摘要： Systems and methods for interference cancellation at a receiver in a wireless communication system are provided. In one aspect, a method for interference cancellation is provided. The method comprises providing total received chips received from a plurality of cells (2810). The method also comprises successively estimating received chips for each of the plurality of cells in a plurality of iterations (2820), wherein each of the plurality of iterations after a first iteration comprises canceling previously estimated received chips for one or more of the plurality of cells from the total received chips, and estimating received chips for one of the plurality of cells using the total received chips with the previously estimated received chips for the one or more of the plurality of cells cancelled out (2830).
摘要翻译：提供了在无线通信系统中的接收机处的干扰消除的系统和方法。一方面，提供了一种用于干扰消除的方法。该方法包括提供从多个小区接收的总接收码片（2810）。该方法还包括在多次迭代（2820）中连续地估计多个小区中的每一个的接收码片，其中在第一次迭代之后的多个迭代中的每一个包括消除多个小区中的一个或多个的先前估计的接收码片从所述总接收到的芯片中，使用所述多个小区中的所述一个或多个被消除的所述先前估计的接收码片的总接收码片来估计所述多个小区中的一个小区的接收码片（2830）。

2. 发明申请

WO2012054494A1 APPARATUS AND METHOD FOR TWO-STAGE LINEAR/NONLINEAR INTERFERENCE CANCELLATION 审中-公开
标题翻译：两级线性/非线性干扰消除的装置和方法
公开(公告)号：WO2012054494A1
公开(公告)日：2012-04-26
申请号：PCT/US2011/056726
申请日：2011-10-18
申请人： QUALCOMM INCORPORATED , YU, Yingqun , ABRISHAMKAR, Farrokh , LI, Wenjun , KAN, Andrew K.
发明人： YU, Yingqun , ABRISHAMKAR, Farrokh , LI, Wenjun , KAN, Andrew K.
IPC分类号： H04B1/7107 , H04B1/7105 , H04J11/00
CPC分类号： H04B1/7107 , H04B1/71052 , H04J11/0046 , H04J11/0056
摘要： An apparatus and method for a two-stage linear/nonlinear interference cancellation comprising processing a receive signal to produce a first descrambled signal; and processing the first descrambled signal to produce a detected signal. In one aspect, a first interference canceller module is used for processing the received signal and a second interference canceller module is used for processing the first descrambled signal. In one aspect, the first interference canceller is a linear interference canceller (IC) and the second interference canceller is a linear/nonlinear interference canceller (IC).
摘要翻译：一种用于两级线性/非线性干扰消除的装置和方法，包括处理接收信号以产生第一解扰信号; 以及处理第一解扰信号以产生检测信号。一方面，第一干扰消除器模块用于处理接收的信号，第二干扰消除器模块用于处理第一解扰信号。一方面，第一干扰消除器是线性干扰消除器（IC），第二干扰消除器是线性/非线性干扰消除器（IC）。

3. 发明申请

WO2010129438A1 METHOD AND SYSTEM FOR MULTI-USER DETECTION IN THE PRESENCE OF MULTIPLE SPREADING FACTORS 审中-公开
标题翻译：用于多用户检测的多个扩展因子的方法和系统
公开(公告)号：WO2010129438A1
公开(公告)日：2010-11-11
申请号：PCT/US2010/033289
申请日：2010-04-30
申请人： QUALCOMM INCORPORATED , YU, Yingqun , LI, Wenjun , ABRISHAMKAR, Farrokh , SRIPATHI, Prashant, Udupa
发明人： YU, Yingqun , LI, Wenjun , ABRISHAMKAR, Farrokh , SRIPATHI, Prashant, Udupa
IPC分类号： H04B1/707
CPC分类号： H04B1/7103 , H04B2201/70703
摘要： Methods and systems for multi-user detection in the presence of multiple spreading factors are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises an interference computation unit configured to compute a combined interference based on detected user symbols for a first spreading factor and detected user symbols for a second spreading factor, wherein the combined interference accounts for multi-user interference from user symbols for the first and second spreading factors. The apparatus further comprises an interference cancellation unit configured to remove the computed combined interference from a plurality of received symbols corresponding to the first spreading factor and a redetection unit configured to redetect the user symbols for the first spreading factor from the plurality of received symbols with the computed combined interference removed.
摘要翻译：提供了在存在多个扩展因子的情况下进行多用户检测的方法和系统。在本公开的一个方面，提供一种装置。所述装置包括：干扰计算单元，被配置为基于用于第一扩频因子的检测到的用户符号和用于第二扩频因子的检测到的用户符号来计算组合干扰，其中所述组合干扰考虑来自用户符号的第一和第二个传播因素。所述装置还包括：干扰消除单元，被配置为从对应于所述第一扩频因子的多个接收符号中去除所述计算出的组合干扰;以及重新检测单元，被配置为从所述多个接收到的符号重新检测所述第一扩频因子的用户符号，计算出的组合干扰被去除。

4. 发明申请

WO2010083661A1 METHOD AND DEVICE FOR IMPROVING THE MANAGEMENT OF WIRELESS MESH NETWORKS 审中-公开
标题翻译：改善无线网络管理的方法和装置
公开(公告)号：WO2010083661A1
公开(公告)日：2010-07-29
申请号：PCT/CN2009/070323
申请日：2009-01-24
申请人： HUAWEI TECHNOLOGIES CO., LTD. , ZHANG, Huimin , LI, Wenjun , ZHOU, Yuan , MAX, Sebastian , ZANG, Yunpeng , WALKE, Bernhard
发明人： ZHANG, Huimin , LI, Wenjun , ZHOU, Yuan , MAX, Sebastian , ZANG, Yunpeng , WALKE, Bernhard
IPC分类号： H04W16/00
CPC分类号： H04W28/22 , H04L41/00 , H04L41/142 , H04L43/0894
摘要： The present invention discloses a method for calculating transmission rate for wireless mesh network. The comprising: getting the interference probability distribution according to the traffic load and the current rate of links; getting SINR according to the interference probability distribution; determining the MCS according to the SINR; and determining the transmission rate according to the MCS.
摘要翻译：本发明公开了一种计算无线网状网络传输速率的方法。包括：根据流量负载和当前链路速率获取干扰概率分布; 根据干扰概率分布获得SINR; 根据SINR确定MCS; 并根据MCS确定传输速率。

5. 发明申请

WO2011140396A9 INTERFERENCE CANCELLATION USING A LINEAR RECEIVER 审中-公开
公开(公告)号：WO2011140396A9
公开(公告)日：2011-11-10
申请号：PCT/US2011/035426
申请日：2011-05-05
申请人： QUALCOMM Incorporated , LI, Wenjun , ABRISHAMKAR, Farrokh , GUMMADI, Srikanth
发明人： LI, Wenjun , ABRISHAMKAR, Farrokh , GUMMADI, Srikanth
IPC分类号： H04L25/02 , H04L25/03
摘要： Interference cancellation at a user equipment includes performing channel estimation for each component of an aggregate received signal using at least one received midamble of at least one time slot. The aggregate received signal is received from at least one Node B. A combined channel is computed for each channelization code based on the channel estimation. A linear transfer function is obtained for all user equipment within a cell. This linear transfer function includes a combined channel for each channelization code. An equalization matrix is derived from the linear transfer function and then applied to the aggregate received signal to obtain the component intended for the user equipment.

6. 发明申请

WO2010129440A1 METHOD AND SYSTEM FOR MULTI-USER DETECTION USING TWO-STAGE PROCESSING 审中-公开
标题翻译：使用两阶段处理进行多用户检测的方法和系统
公开(公告)号：WO2010129440A1
公开(公告)日：2010-11-11
申请号：PCT/US2010/033296
申请日：2010-04-30
申请人： QUALCOMM INCORPORATED , LI, Wenjun , YU, Yingqun , ABRISHAMKAR, Farrokh , SIKRI, Divaydeep , KANG, Insung
发明人： LI, Wenjun , YU, Yingqun , ABRISHAMKAR, Farrokh , SIKRI, Divaydeep , KANG, Insung
IPC分类号： H04B1/707
CPC分类号： H04B1/71052
摘要： Systems and methods for multi-user detection in a multiple access system are provided. In one aspect, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users and a computation unit configured to compute a multi-user matrix using a Hadamard matrix, wherein the multi-user matrix relates user symbols for the plurality of users to the received symbols. The apparatus further comprises a detection unit configured to detect the user symbols for the plurality of users using the received symbols and the computed multi-user matrix.
摘要翻译：提供了一种用于多访问系统中多用户检测的系统和方法。一方面，提供了一种装置。该装置包括：处理单元，被配置为将接收到的码片处理为多个用户的接收符号;以及计算单元，被配置为使用哈达玛矩阵来计算多用户矩阵，其中多用户矩阵涉及多个用户的用户符号到收到的符号。所述装置还包括检测单元，被配置为使用所接收的符号和所计算的多用户矩阵来检测所述多个用户的用户符号。

7. 发明申请

WO2010129439A3 METHOD AND SYSTEM FOR MULTIUSER DETECTION 审中-公开
标题翻译：用于多用户检测的方法和系统
公开(公告)号：WO2010129439A3
公开(公告)日：2010-11-11
申请号：PCT/US2010/033292
申请日：2010-04-30
申请人： QUALCOMM INCORPORATED , ABRISHAMKAR, Farrokh , LI, Wenjun , YU, Yingqun , SRIPATHI, Prashant, Udupa
发明人： ABRISHAMKAR, Farrokh , LI, Wenjun , YU, Yingqun , SRIPATHI, Prashant, Udupa
IPC分类号： H04L25/03 , H04L27/34 , H04L27/38 , H04B1/707
摘要： Systems and methods for symbol detection are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users, a first detection unit configured to detect first components of user symbols for the plurality of users based on the received symbols and a computation unit configured to compute a portion of the received symbols due to the first components of the user symbols. The apparatus further comprises a second detection unit configured to detect second components of the user symbols based on the received symbols with the computed portion removed and a combining unit configured to detect the user symbols by combining the first components of the user symbols with the respective second components of the user symbols.
摘要翻译：提供了用于符号检测的系统和方法。在本公开的一个方面中，提供了一种装置。该设备包括：处理单元，被配置为将接收到的码片处理成针对多个用户的接收码元;第一检测单元，被配置为基于接收到的码元检测多个用户的用户码元的第一分量;以及计算单元，由于用户符号的第一分量而导致接收符号的一部分。该装置进一步包括：第二检测单元，被配置为基于具有去除的计算部分的接收到的符号来检测用户符号的第二分量;以及组合单元，被配置为通过将用户符号的第一分量与相应的第二分量相组合来检测用户符号用户符号的组件。

8. 发明申请

WO2012006583A1 CHANNEL ESTIMATION BASED ON MIDAMBLE 审中-公开
标题翻译：基于MIDAMBLE的信道估计
公开(公告)号：WO2012006583A1
公开(公告)日：2012-01-12
申请号：PCT/US2011/043444
申请日：2011-07-08
申请人： QUALCOMM INCORPORATED , SANKAR, Hari , LI, Wenjun , KHATIBI, Farrokh , GUMMADI, Srikanth
发明人： SANKAR, Hari , LI, Wenjun , KHATIBI, Farrokh , GUMMADI, Srikanth
IPC分类号： H04L25/02
CPC分类号： H04L25/0218 , H04L25/0228 , H04L25/024
摘要： Channel estimation at a user equipment includes estimating channel quality of at least one channel. A first algorithm or a second algorithm is selected based on the estimated channel quality. Channel estimation is performed based on the selected algorithm. The first algorithm may be a midamble multiplication-based algorithm. The second algorithm may be a midamble division algorithm. Channel estimation may also include estimating noise of a channel and adaptively setting a threshold based on the estimated noise to refine the channel estimation. The estimating channel quality, selecting of a first or second algorithm and channel estimation may be performed iteratively for contributing signals on a channel. An adaptive threshold may be modified across iterations. The channel estimation may also include determining a delay profile of a channel to refine the channel estimation.
摘要翻译：在用户设备处的信道估计包括估计至少一个信道的信道质量。基于估计的信道质量来选择第一算法或第二算法。基于选择的算法执行信道估计。第一种算法可以是基于midamble乘法的算法。第二种算法可以是中间码分割算法。信道估计还可以包括估计信道的噪声并且基于所估计的噪声自适应地设置阈值以改善信道估计。可以迭代地执行估计信道质量，第一或第二算法的选择和信道估计，以在信道上提供信号。可以跨迭代修改自适应阈值。信道估计还可以包括确定信道的延迟分布以细化信道估计。

9. 发明申请

WO2011140396A1 INTERFERENCE CANCELLATION USING A LINEAR RECEIVER 审中-公开
标题翻译：使用线性接收器进行干扰消除
公开(公告)号：WO2011140396A1
公开(公告)日：2011-11-10
申请号：PCT/US2011035426
申请日：2011-05-05
申请人： QUALCOMM INC , LI WENJUN , ABRISHAMKAR FARROKH , GUMMADI SRIKANTH
发明人： LI WENJUN , ABRISHAMKAR FARROKH , GUMMADI SRIKANTH
IPC分类号： H04L25/02 , H04L25/03
CPC分类号： H04L25/0204 , H04L1/1832 , H04L5/0007 , H04L5/0051 , H04L25/0224 , H04L25/0242 , H04L2025/03414 , H04L2025/03426 , H04L2025/03624
摘要： Interference cancellation at a user equipment includes performing channel estimation for each component of an aggregate received signal using at least one received midamble of at least one time slot. The aggregate received signal is received from at least one Node B. A combined channel is computed for each channelization code based on the channel estimation. A linear transfer function is obtained for all user equipment within a cell. This linear transfer function includes a combined channel for each channelization code. An equalization matrix is derived from the linear transfer function and then applied to the aggregate received signal to obtain the component intended for the user equipment.
摘要翻译：在用户设备处的干扰消除包括使用至少一个接收到的至少一个时隙的中间码来对聚合接收信号的每个分量进行信道估计。从至少一个节点B接收聚合接收信号。基于信道估计，针对每个信道化码来计算组合信道。为单元内的所有用户设备获得线性传递函数。该线性传递函数包括用于每个信道化码的组合信道。均衡矩阵从线性传递函数导出，然后应用于聚合接收信号，以获得用于用户设备的组件。

10. 发明申请

WO2010129439A2 METHOD AND SYSTEM FOR SYMBOL DETECTION USING SUB-CONSTELLATIONS 审中-公开
标题翻译：使用辅助信号进行符号检测的方法和系统
公开(公告)号：WO2010129439A2
公开(公告)日：2010-11-11
申请号：PCT/US2010033292
申请日：2010-04-30
申请人： QUALCOMM INC , ABRISHAMKAR FARROKH , LI WENJUN , YU YINGQUN , SRIPATHI PRASHANT UDUPA
发明人： ABRISHAMKAR FARROKH , LI WENJUN , YU YINGQUN , SRIPATHI PRASHANT UDUPA
IPC分类号： H04L25/03
CPC分类号： H04L25/03063 , H04B1/7107 , H04B2201/70703 , H04J11/0036 , H04J13/0044 , H04J13/0048 , H04J13/12 , H04L27/3488 , H04L27/38
摘要： Systems and methods for symbol detection using sub-constellations are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users, a first detection unit configured to detect first components of user symbols for the plurality of users based on the received symbols and a computation unit configured to compute a portion of the received symbols due to the first components of the user symbols. The apparatus further comprises a second detection unit configured to detect second components of the user symbols based on the received symbols with the computed portion removed and a combining unit configured to detect the user symbols by combining the first components of the user symbols with the respective second components of the user symbols.
摘要翻译：提供了使用子星座进行符号检测的系统和方法。在本公开的一个方面，提供一种装置。该装置包括：处理单元，被配置为将接收到的码片处理为多个用户的接收符号;第一检测单元，被配置为基于接收到的码元检测多个用户的用户符号的第一分量;以及计算单元，由于用户符号的第一分量，接收到的符号的部分。所述装置还包括：第二检测单元，被配置为基于所接收的符号检测所述用户符号的第二成分，所述接收到的符号被删除;以及组合单元，被配置为通过将所述用户符号的第一分量与相应的第二用户符号的组成部分。

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